Telescope.



No. 737,372. PATBNTBD 5m11.190s.

G. N. SAEGMULLER.

TELESGOPE.

APFLIGATION FILED MAY 18, 1903.. NO'MODEL.

V ply moving the .UNirnV rares @attentati eptemher l, 1903.

f .erster "ENCE TLESGOPE.

srEcIFIcAcrroN forming part of. haters Patent No. 737,872,

dated September 1, 1903.

Application tiled May 18, 1903. Serial No. 157,686. (No model 'o (LZZ 1072.011@ t i12/ery concern.,-

Be it known that I, GEORGE N. Sammlun- LER, a citizen of the United States, residing at lVzisliingt-oii, in the District of Columbia, have invented certain new provements in Telescopes, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a telescope, and particularly to an instrumentfor gun-sighting purposes.

The invention has for an object to provide a construction whereby the telescope maybe adapted for either high or low power-that is, a wide iield of extended vision or a narrower field with a more clear definition of the object viewed-and this function is accomplished by the use of a variable or adjustable eyepiece mounted for adjustment relative to the system of erecting-lens and both the eyepiece and erecting-lens adjustable relative to the object-lens for the object of focusing the instrument. l i

-A further object of the invention is to provide means for limiting the'extent of adjustment of these parts and the focusing movement so that the instrument may be readily adjusted for either high orlow power by simpart-s thereof to the full limit of their travel.

A further object of the invention is to provide aremovable object-lens so that the same may be replaced bya similar lens of different power, thus increasing the range of 4use of the instrument to the fullest extent possible.

Other objects and advantages of the invention Willbe hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings, Figure lis a side elevation with the parts in position for low power. Fig.

2 is longitudinal horizontal section on the line 2 2 of Fig. l with the parts adjusted for high power and an eye-shield applied to the instrument. Fig. 3 is avertical longitudinal section ofthe parts shown in Fig. l, taken upon the line 3 3 of Fig. 2; and Figariis a vertical cross-section on the line at 4 of Fig. l.

Like letters. of reference refer to like parts n in the several figures of the drawings.

Theletter A indicates a telescspe-casingl and useful Im! adapted to receive auobject-lens A of any preferred construction and. provided at one end with a slot or way A2 and with a suitable split portion AX to permit the clamping of the free end of the casing by means of the band A3, applied thereto and having a suitable threadedclamping-bolt A* extending through the lugs at the free end of said band and provided with a head A, of angular construction, to receive awrench for the purpose of clamping and releasing the band. The object-lens A is mounted within the casing A, having a collar A7 extending within the split end AS of the casing A, and surrounding this end is a clampingband A9, provided with a threaded bolt A10, similar in construction to the bolt A? just described. By this means the object`- lens may be removed and replaced4 by a lens of different power or construction adapted to the particular character of work to be done by the instrument.

Slidingly mounted within the casing A is a telescoping tubular erector-casing B, which is provided upon its face opposite the slot A2 of the casingA with a block or stop B, fitting said slot and traveling therein to determine the universal focus of the instrument for high and low power, respectively. ingis provided at its forward end witha holder B3, carrying any desired system of erecting lenses within the casin g or lens-tube B3-for instance, a convexed lens B4 at theV forward end and a plano-convexed lens B5 at the inner end, with the usual diaphragm Bfi interposed.

This casing B is provided upon one face with a longitudinally extending slot BT, as shown by dottedlines in Fig. 2 and full lines in Fig. 3,

while the extended split end Bs thereof is provided with a` clamping-collar B9 and' clamping-bolt B10, of similar construction to those hereinbefore described.

'Within the erector-casing the eyepiece-ca s* ing C-is provided and telescopingly mounted therein, while the inner end thereof is pro vided with a block or projection C, traveling in the slot B of the casing B, so as to positively determine the extent of movement be tween the eyepiecexand the erector necessary forthe high and low power, respectively. The outer end of this casing C is provided with a holder, C2, carrying a tube C3, within which IOS 4 to permit the adjusted c asings to be tele-v the parts are clamped in position by means ot'` the band upon the obj ect-casing.

i any ordinary construction of lens for the eye- I piece may be mounted-for instance, a convexed lens (34 and a plano-convexe'd lens C5,

with the interposed diaphragm C9. Upon the .lens C5 an apertured cap G6 is secured and provided upon itsperiphery with a ribOl, over which a` iiexible eye-shield C8, of any preferred construction, may be'placed and thereby held in position. -v .f

In Fig. lrthe parts are shown. as adj usted forlow power with the lenses in closest proximity to veach other and the projection carried by the .eyepiece-casing at the. endof the slot in 'the erector-casing nearest the objective ,lens while the. erector casing is withdrawnfromthe. object-casing until the projection carried thereby is at the end ,of the slot in the lobject-casing next the eyepiece, as shown in l, thus jointly removing the adjusted system of lenses at their farthest point from "the object-Iensand establishing the proper universal focus for the instrument. This adjustment is secured by slightly loosening the clamping-band carried by the erector-casing,

so that the eyepiece-casing can be telescoped therein to the position described, when the parts are again clamped and the clampingband on lobject-casing released to permit the erector and eyepiece casin gs to be drawn outward in unison when all of the parts are iirmly clamped in relative position by tightening the clamp upon the object-casing.y

desired to increase thepower of the instrument, the erector and eyepiece casings are separated -from each otherfas shown in Fig.

Q-until'the projection carried bythe latter Yreaches the end of the slot inthe former next ythe eyepiece. The erector and eyepiece casings are then'cla mped together andthe clamping band upon. the object casing released v scoped into the object-casing until the projection carried by the elector-casing reaches the end of the'slotinthe object-casing next the obj ect-lens, as shown in Fig. 2, whenj all of of movement for accomplishing these results is carefully determined and the instrument adjusted accordingly, so that the eyepiece is variable in its adjustment tQward the erector system and also adjustable with the erector system toward and from the objectdens for the purpose of securing the proper focus. rihis variable eyepiece allows an increase in the magnifying power of from two to six diameters; but if it is found, desirable to increase the power to a larger extent it may be accomplished by releasing the band at the object i' ment of ordinary size means for rendering the end of the object-casing and removing the object-lens therefrom and substituting another of longer focus. It will thus be seen that the present invention combines in asin glc instru Same capable of 4use as either a'high or low power telescope. and the adjustment of the WhenA it is The extent 'remera made in the details of construction and configuration without departing from the spi-rit of the invention yas defined b`y the appended'l claims. 4 i

Having described' my invention and set forth its merits, what I claim, and desireto 'secure by Letters Patent, is l. ln a telescope vthe combinationwith an 'object-lens; of an eyepiece and erector adjustable toward and 1from each other and jointly adjustable in their adjusted Arelation relative to the object-lens.

2. in a telescope the combination with an objectdens, of an eyepiece and erector adjustable toward andfrom each otherand jointly adjustable in their adjustedrelation l 4relative to the objectlens, meansfor secur-A ing the eyepiece and erector'in their adjusted positions, and means for securing the-jointly adjustable eyepiece and erector in focus relative to the objectflens.

3. In a telescope, a casing provided with an obj ect-lens; a casing provided with a system of erecting-lenses, a casing provided with an eyepiece, means forl adjusting ythe eyepiece relative to the erecting system, and means for jointly adjusting the erecting system and eyepiece in their adj usted relation relative to the object-lens.

loo

4. Ina telescope, av casing provided with an objectlens, a .casing provided with a system of erecting-lenses, a casing provided with an eyepiece, means for adjusting the eyepiece relative to the erecting system, means for jointly adjusting the erecting system and eyepiece in'th eir adjusted relation relative to the object-lens, means for clamping the 4erector and eyepiece together, and means for clamping the erector and eyepiece casings within the .objectden's casing. l

5,. in a telescope, a casin g provided with an objectden's, a casing provided with a system of erecting-lenses, a casing providedwith an eyepiece, means for adjusting the eyepiece relative to the erecting system, means for 'jointly adjusting the erecting system and eyepiece in their adjusted relation relative to the objectden's, means for. clamping the erector and eyepiece together, means for clamping,

the erector and eyepiece casings within the object-lens casing, and a removable objectlens.

ln atelescope, a casing provided with an objectdens, a telescoping adjustable casing provided with an erector, and an eyepiece ramera piece and projection extending into the slot in the erector-casing. y

8. In atelescope, aslotted .casing provided with an object-lens at one end, a slotted telescoping casing provided with an erector and having'a projection extending into the slot of the object-easing, a casing provided with an eyepiecevand projection extending into the slot in the erector-casing, clamping means at the end of the object-casing opposite the lens, and clamping mea-ns at the end of the erectorcasing opposite tlie'lens. l

9. In a telescope, a slotted casing provided with an object-lens at one end, a slotted telescoping casing provided with an erector and having a projection extending into the slot of the object-casing, a casing provided with anl eyepiecem and projection extending into the slot in the elector-casing, clamping means at the end of the object-casing opposite the lens, clamping` means at the endfof the erector-casing opposite the lens, a removable cas'- ing carrying an objectlens, and clamping means for securing said lens-casing VWithin the main casing.

l0. In a'telescope,a casing provided with an object-lens at one end, a telescoping easing provided with an erecting system com prising a convexed and a plano-convexed lens, and a ftelescoping .casingprovided with an eyepiece comprising` a convexed lens and a plano-convexed lens and jointly adjustable with the erecting-lens relative to the objectlens. l

ll. In a telescope, a casing provided with` an object-lens at one end, a telescoping casin g provided With'an erecting system compristhe erector-casing and .for'high power.

ing a eonvexed lens anda'plano-'convexed lens, a telescoping' casing 'provided with anY eyepiece `comprising a convexed lens and a plano-convexed lens, and jointly .adjustable 5c with the erecting-lens relative to the' objeetlens, a projection carried bythe creator-casing and traveling in a focusing-slot formed in the object-casing, and a projection carried bythe eyepiece-casing traveling in an adjusting-slot 5 5 formed in the creator-casing. n 12.` In a telescope, a casing provided with an object-lens at one end, a telescoping 4casing provided with an erectingsystem comprising a'convexed lens andfa plano-convexed 6o "lens, a te1escopin;z. Vcasing provided with. an eyepiece comprising :a

convened4 lens and a. projection carried by traveling in .a'focusing-slot formed in the object-casing, a projection carriedv by the eyepiece-easing traveling; in an adjusting-slot `formed in the erectorcasing, a clamping-band at the end of the object-casing opposite the lens, and a clampingband at the end of the erector-casing. opposite the lens.

.13. Ina telescope, the combinationwith anv object-lens, of an eyepiece and ereetor adjustable toward and from eachother and jointly adjustable in their adjusted relation relative to the object-lens, and means for limiting and determining the extent of adjustment of each of said parts.

14. In a telescope, the combination With'an object-lens, of an eyepiece `and erector, and means to permit the adjustment of said, eyepiece and erector toward each other and jointly in their'adjusted relation away. from the object-lens for low power, and awayfrom each other and jointly toward the object-lens plano-convexed lens, a

In'testimony whereof I ax :my signature in presence of tivo Witnesses.

GEORGE N. SAEGMULLER. Witnesses: JOHN L. FLETCHER,

l 'Louis DI'ETERICH.` 

